You mean row/column normalization of data ? how much performance gain you saw using that ?
On Fri, Oct 24, 2014 at 3:14 PM, DB Tsai <dbt...@dbtsai.com> wrote: > oh, we just train the model in the standardized space which will help > the convergence of LBFGS. Then we convert the weights to original > space so the whole thing is transparent to users. > > Sincerely, > > DB Tsai > ------------------------------------------------------- > My Blog: https://www.dbtsai.com > LinkedIn: https://www.linkedin.com/in/dbtsai > > > On Fri, Oct 24, 2014 at 3:13 PM, Debasish Das <debasish.da...@gmail.com> > wrote: > > @dbtsai for condition number what did you use ? Diagonal preconditioning > of > > the inverse of B matrix ? But then B matrix keeps on changing...did u > > condition it after every few iterations ? > > > > Will it be possible to put that code in Breeze since it will be very > useful > > to condition other solvers as well... > > > > On Fri, Oct 24, 2014 at 3:02 PM, DB Tsai <dbt...@dbtsai.com> wrote: > >> > >> We don't have SVMWithLBFGS, but you can check out how we implement > >> LogisticRegressionWithLBFGS, and we also deal with some condition > >> number improving stuff in LogisticRegressionWithLBFGS which improves > >> the performance dramatically. > >> > >> Sincerely, > >> > >> DB Tsai > >> ------------------------------------------------------- > >> My Blog: https://www.dbtsai.com > >> LinkedIn: https://www.linkedin.com/in/dbtsai > >> > >> > >> On Fri, Oct 24, 2014 at 2:39 PM, k.tham <kevins...@gmail.com> wrote: > >> > Oh, I've only seen SVMWithSGD, hadn't realized LBFGS was implemented. > >> > I'll > >> > try it out when I have time. Thanks! > >> > > >> > > >> > > >> > -- > >> > View this message in context: > >> > > http://apache-spark-user-list.1001560.n3.nabble.com/Spark-LIBLINEAR-tp5546p17240.html > >> > Sent from the Apache Spark User List mailing list archive at > Nabble.com. > >> > > >> > --------------------------------------------------------------------- > >> > To unsubscribe, e-mail: user-unsubscr...@spark.apache.org > >> > For additional commands, e-mail: user-h...@spark.apache.org > >> > > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: user-unsubscr...@spark.apache.org > >> For additional commands, e-mail: user-h...@spark.apache.org > >> > > >
